Introduction

STCF03

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7.2.4

ADD pin

7.2.5

TMSK pin

This pin can be used to implement the TX masking function. This function has effect only for

Flash current settings higher than 200 mA (bit FDIM_3=1). Under this condition, when this

pin is pulled high by the P, the current flowing in the LED is forced at 200 mA typ. No internal

pull-up nor pull-down is provided: to be externally wired to GND if TX masking function is not

used.

7.3

Data transmission from the main µP STCF03 and vice versa takes place through the 2 wires

positive supply voltage must be externally connected). The recommended maximum voltage

of these signals should be 3.0 V.

7.4

Data validity

As shown in Figure 4, the data on the SDA line must be stable during the high period of the

clock. The HIGH and LOW state of the data line can only change when the clock signal on

the SCL line is LOW.

Table 7. Address table

ADD pin

A7

A6

A5

A4

A3

A2

A1

A0

GND

011000

0

R/W

VBAT

011000

1

R/W

SDAL

011001

0

R/W

SCL

011001

1

R/W

Figure 4.